08177138 is referenced by 11 patents and cites 459 patents.

A radio IC device that is highly efficient in transmitting signals from a radio IC to a radiation pattern includes a radio IC chip arranged to processes radio signals, an auxiliary electrode pattern that is connected to the radio IC chip and includes a loop-shaped electrode, and a radiation electrode pattern that includes a magnetic-field radiation electrode having a resonant frequency and an electric-field radiation electrode having a resonant frequency. The loop-shaped electrode of the auxiliary electrode pattern is coupled to a maximum-voltage section of the magnetic-field radiation electrode through a capacitor.

Title
Radio IC device
Application Number
13/80775
Publication Number
8177138 (B2)
Application Date
April 6, 2011
Publication Date
May 15, 2012
Inventor
Nobuo Ikemoto
Moriyama
JP
Noboru Kato
Moriyama
JP
Agent
Keating & Bennett
Assignee
Murata Manufacturing
JP
IPC
G06K 19/06
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